Jar cover and gasket



Patented Der., 26, (M22.

NETE@ STATES Parleur onirica@ ANDREW FOLTZ, GIE' LMEBERTVELLE, NEW JERSEY.

aan covnn .ann censuur.

application mea september 17, 192e. serial no. 410,838.

To all 'whom t may concern.' i Be it known`| that I, ANDREW FoLrz, a c1t1- zen of the United States, and a resident of Lambertville, in the county of Hunterdon' and State of vNew Jersey, have invented av tion to seal the cover to the jar, with the exertion of a minimum pressure.

The invention further contemplates lthe provision of a tubular gasket for use in connection with a jar and cover havinga seat of the character described whereby to eiiectively seal the cover 'to the jaw and permit of the ready removal or" the cover when desired.

A further object of the invention resides in the provision of a simple and .edective cover and sealing means whiclri-s inexpensive to manufacture, highly eiiicierit in its purpose and strong and durable in construction.

With the above objects in view, some of which will appear more/,clearly from the following detailed description, reference is had to the accompanying drawings forming a part otl this application and in which;

Figure 1 is a side elevation oi' a jar7 partly in section and illustrating the same equipped with a cover and sealing gasket constructed in accordance with the invention.

Figure 2 is `a detail perspective view of the gasket removed with a part thereof broken away to illustrate the formation thereof.

Referring to the drawings by characters of reference, 10 designates a jar body provided with a reduced neck 11, having an upwardly and outwardly tapering conical mouth 12. The lower portion of the mouth 12 is provided with an inwardly projecting annular. bead 13 providedy at its juncture with the mouth, with a concave wall 1d. rThe cover 15 is provided with a downwardly and inwardly tapered annular side wall 16', the upper portion thereof havin an outwardly projecting annular bead 1 which isI provided with a concave wall 18 at its juncture with the wall 16. An annular gasket 19 of tubular formation is preferably used. in connection with the cover and is received and seated in the mouth 12. rThe gasket co-acts with the downwardly tapered wall 16 upon the application of the cover to the jaw and provides a seal between the mouth 12' and said wall 16. A minimum exertion of pressure will effec-t a slight distortion of the gasketand effect a sealing Contact of the same with the entire surface of the mouth and the wall 16 of the cover. The concaved portionslt and 18 constitute a means for limiting the relative movement of the wall 16 and the mouth 12 toward each other by providing gradually increasing diameters which grip'the gasket. By using a gasket of tubular form as illustrated, the

amount of pressure required for sealing the cover 1s minimized -as a gasket of this 'form is more readily compressible than is a gasket of sol-id form and further a gasket of this form will adhere more closelyA to its seat and provide a more effective sea-l, as it will roll during the compressing action.

While there has been illustrated and described a single and preferred form, no limitation is necessarily majde to the precise structural details and it is understood that the right isreserved to other embodiments which fall withinthe scope and meaning' oi' the terms in which the claim is expressed.

Having thus described-my invention, T

claim as new and desire to secure by Letters Patent:

in combination, a jar and a cover therefor provided respectively with oppositely beveled complementaryl gasket receiving seats having enlarged beads and reverselycurved portion at the juncture of said seats with the beads, and an annular tubular gasket ladapted to be loosely received between said seats.

to coact therewith whereby uponapplication of the -coverV to the jar a'rolling and distortion ofthev gasket will be eected to seal the closure.

annianw retira, 

